If you're running a pre-2019 SRAM hydraulic road disc setup — Red 22, Force 22, Rival 22, S-700, Force 1, Rival 1, CX1, or the first-generation Red eTap and Level TLM/Ultimate calipers from 2017-2019 — these are the replacement pads that fit your caliper. SRAM's HRD monoblock caliper pads cover Apex, Rival, Force and Red, plus Red eTap and Level TLM/ULT from 2017-2019. The mounting arm sits to the side of the pad rather than centered, which is the visual tell for identifying a monoblock caliper versus the newer 2-piece design. They are not compatible with 12-speed SRAM AXS brakes , so if you've upgraded to Red, Force, Rival, or Apex AXS in the last few years, you need the 2-piece caliper pad instead.

SRAM offers this pad in two compounds and this listing covers both. The organic/steel version (part 00.5318.010.002) is the quieter option and the one to run if you're primarily riding dry pavement — it modulates well and is easier on your rotors, at the cost of some ultimate stopping power and pad life. The sintered/steel version (part 00.5318.010.004) uses a metal compound that holds up better in wet weather, on long descents, and under harder use — it lasts longer and bites harder, but can be noisier when things get dry and dusty. The organic compound is designed to be quieter and offer better brake modulation, but is slightly less powerful. The sintered version offers more stopping power and performs better in the wet, but can be louder.

Both compounds ship with a steel backing plate, and each pack outfits one caliper — you'll need two packs to do both front and rear. Each set includes two pads, a pad spring, pin and clip , so you have everything needed for a clean install. If you're switching between compounds — say, going from organic to sintered — plan on installing fresh rotors as well and running through SRAM's bed-in procedure to reset the transfer layer. Mixing pad materials on a used rotor is where inconsistent bite and noise complaints usually come from.